Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 14
a rifle-bullet or the strength of an electriccurrent,—can ultimately be reduced to nieasiuement of length,mass and time. Hence these units are properly consideredfundamental. 4. Standards of Length,—the Yard. There are twostandards of length in use in English-speaking countries,namely, the yaid and… … Fiu. 1.—Bronze yard, 3S in. long, 1 in. sq. in section.a, a are small wells in bar, sunk to mid depth. is now defined as tlie distance between tlie centres of twotransverse lines ruled on two gold plugs in a bronze bar,which is preserved in London, England, in the StandardsOffice of the Board of…
Physics
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